Github user iverase commented on a diff in the pull request:
https://github.com/apache/lucene-solr/pull/288#discussion_r155843390
--- Diff:
lucene/spatial-extras/src/java/org/apache/lucene/spatial/spatial4j/Geo3dShapeFactory.java
---
@@ -67,6 +74,25 @@ public SpatialContext getSpatialContext() {
return context;
}
+ /**
+ * Set the accuracy for circles.
+ *
+ * "Accuracy" is defined as the maximum linear distance between any
point on the
+ * surface circle and planes that describe the circle. Therefore on
WSG84, since the
+ * radius of earth is 6,371,000 meters, an accuracy of 1e-6 corresponds
to 6.3 meters.
+ * For an accuracy of 1.0 meters, the value of 1.6e-7.
+ *
+ * The default value is set to 10m (1.6e-6).
+ *
+ * Note that accuracy has no effect when the planet model is a sphere.
In that case circles
+ * are always fully precise.
+ *
+ * @param circleAccuracy the provided accuracy as a linear distance.
--- End diff --
I need to ask Karl Wright if that is what it means, but I guess so. I will
update accordingly.
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